diff --git a/bookwyrm/templates/book/cover_add_modal.html b/bookwyrm/templates/book/cover_add_modal.html
index e8207ff4..8ca5bf2a 100644
--- a/bookwyrm/templates/book/cover_add_modal.html
+++ b/bookwyrm/templates/book/cover_add_modal.html
@@ -28,8 +28,10 @@
 {% endblock %}
 
 {% block modal-footer %}
-<button class="button is-primary" type="submit">{% trans "Add" %}</button>
-<button type="button" class="button" data-modal-close>{% trans "Cancel" %}</button>
+<div class="buttons is-right is-flex-grow-1">
+    <button class="button is-primary" type="submit">{% trans "Add" %}</button>
+    <button type="button" class="button" data-modal-close>{% trans "Cancel" %}</button>
+</div>
 {% endblock %}
 
 {% block modal-form-close %}</form>{% endblock %}
diff --git a/bookwyrm/templates/readthrough/delete_readthrough_modal.html b/bookwyrm/templates/readthrough/delete_readthrough_modal.html
index 5b3a74cc..88ebf53c 100644
--- a/bookwyrm/templates/readthrough/delete_readthrough_modal.html
+++ b/bookwyrm/templates/readthrough/delete_readthrough_modal.html
@@ -14,12 +14,20 @@
 {% endblock %}
 
 {% block modal-footer %}
-<form name="delete-readthrough-{{ readthrough.id }}" action="/delete-readthrough" method="POST">
+<form
+    name="delete-readthrough-{{ readthrough.id }}"
+    action="/delete-readthrough"
+    method="POST"
+    class="is-flex-grow-1"
+>
     {% csrf_token %}
     <input type="hidden" name="id" value="{{ readthrough.id }}">
-    <button class="button is-danger" type="submit">
-        {% trans "Delete" %}
-    </button>
-    <button type="button" class="button" data-modal-close>{% trans "Cancel" %}</button>
+
+    <div class="buttons is-right">
+        <button type="button" class="button" data-modal-close>{% trans "Cancel" %}</button>
+        <button class="button is-danger" type="submit">
+            {% trans "Delete" %}
+        </button>
+    </div>
 </form>
 {% endblock %}